克氏针固定治疗儿童肱骨髁上骨折不同进针方式的比较

Objective To compare the treatment outcomes of techniques of K-wire fixation for treatment of supracondylar humeral fractures in children and provide guidelines for selection of internal fixation methods for humeral supracondylar fractures in children.Methods Sixty-four cases d humeral supracondlylar fractures in children were treated by K-wire internal fixation from January 2004 to January 2009.They were divided into 2 groups, with similar fracure types distributed to each group.Group one (crisscross K-wire fixation) contained 38 cases among which 21 were Gartlad Ⅱ fractures and 17 were Gartland Ⅲ fractures.Group two (lateral parallel K-wire fixation) cases contained 26 cases among which 18 cases were Gartland Ⅱ fractures and 8 cases were Garland Ⅲ fractures.Postoperative elbow functions were evaluated and compared between the two groups.Statistical analysis of the excellent-good rate was carried out.Results Postoperatively all 64 patients were follow-up for 6 to 54 moths (average 26 months).The excellent-good rate of elbow fiuctions in group one and two was 92.1% and 84.6%, respectively.There was no significant difference in functional recovery between the two fixation methods (P＞ 0.05).However ulnar nerve injury occurred in 4 cases of the crisscross K-wire insertion group, while none occurred in the lateral parallel K-wire insertion group.Conclusion Crisscross and lateral parallel K-wire fixation have similar clinical outcomes in treating humeral supracondylar fiactures in children.Lateral parallel K-wire fixation technique is simpler and can avoid the risk of iatrogenic ulnar nerve injury.It therefore is an effective method to treat Gartland Ⅱ and Ⅲ supracondylar humerus fractures.     

克氏针固定治疗儿童肱骨髁上骨折不同进针方式的比较

目的 通过克氏针固定治疗儿童肱骨髁上骨折两种进针方式的疗效比较,探讨儿童肱骨髁上骨折内固定方式的选择.方法 在2004年1月至2009年1月收治的肱骨髁上骨折患儿中,选择骨折类型相似,而克氏针进针方式不同(内外交叉固定及外侧平行克氏针固定)两组共64例患儿.按照Gartland分型,内、外交叉克氏针固定组(交叉固定组)38例,其中Ⅱ型21例,Ⅲ型17例;外侧平行克氏针固定组(外侧进针组)26例,Ⅱ型18例,Ⅲ型8例.并对两组术后功能优良率进行统计学比较.结果 64例患儿术后获得6～54个月(平均26个月)的随访.两组关节功能优良率分别为92.1%和84.6%,差异无统计学意义(P＞0.05).但交叉固定组术后出现4例尺神经损伤,外侧进针组则无此情况发生.结论 采用克氏针内固定治疗儿童肱骨髁上骨折,内外交叉和外侧平行进针固定效果相似,但外侧进针操作更简单,且可避免医源性尺神经损伤,是治疗GartlandⅡ、Ⅲ型肱骨髁上骨折的一种有效方式.

Abstract：

Objective To compare the treatment outcomes of techniques of K-wire fixation for treatment of supracondylar humeral fractures in children and provide guidelines for selection of internal fixation methods for humeral supracondylar fractures in children.Methods Sixty-four cases d humeral supracondlylar fractures in children were treated by K-wire internal fixation from January 2004 to January 2009.They were divided into 2 groups, with similar fracure types distributed to each group.Group one (crisscross K-wire fixation) contained 38 cases among which 21 were Gartlad Ⅱ fractures and 17 were Gartland Ⅲ fractures.Group two (lateral parallel K-wire fixation) cases contained 26 cases among which 18 cases were Gartland Ⅱ fractures and 8 cases were Garland Ⅲ fractures.Postoperative elbow functions were evaluated and compared between the two groups.Statistical analysis of the excellent-good rate was carried out.Results Postoperatively all 64 patients were follow-up for 6 to 54 moths (average 26 months).The excellent-good rate of elbow fiuctions in group one and two was 92.1% and 84.6%, respectively.There was no significant difference in functional recovery between the two fixation methods (P＞ 0.05).However ulnar nerve injury occurred in 4 cases of the crisscross K-wire insertion group, while none occurred in the lateral parallel K-wire insertion group.Conclusion Crisscross and lateral parallel K-wire fixation have similar clinical outcomes in treating humeral supracondylar fiactures in children.Lateral parallel K-wire fixation technique is simpler and can avoid the risk of iatrogenic ulnar nerve injury.It therefore is an effective method to treat Gartland Ⅱ and Ⅲ supracondylar humerus fractures.     

The anterior cubital approach for irreducible Gartland type Ⅲ supracondylar fractures of the humerus in children

Objective To assess the anterior cubital fossa approach in the treatment of irreducible Gartland type Ⅲ supracondylar fractures of the humerus in children. Methods Forty-four children (26 boys) with Gartland Ⅲ supracondylar fractures of the humerus were divided into 2 groups. Group A(19 cases) was treated with a minimal incision in the anterior cubital fossa, and Group B (25 cases) through anterolateral cubital fossa or combined median-lateral approach. The fractures were stabilized with 1.5 mm Kirschner wires and plaster slab after anatomical reduction, followed by functional exercise for 3 to 6 weeks. The clinical outcomes of the 2 groups were evaluated by the Flynn score system for the elbow joint. Results All patients were followed up for 1 to 4 years, with an average of 1.8 years. Group A needed significantly shorter operation time (37 vs. 59 minutes). The good to excellent rates were 89% for Group A and 83% for Group B. There was no significant difference in functional recovery between the 2 groups (P > 0.05). Conclusion Open reduction through the anterior cubital approach is a quick and safe alternative for pediatric Gartland Ⅲ supracondylar fractures of the humerus, because it allows good visualization of the median and ulnar nerves, the brachial artery and the fracture.     

Open reduction and internal fixation for displaced supracondylar fractures of the humerus in children with crossed K-wires via lateral approach

Objective： To assess the therapeutic results of open reduction and internal fixation with crossed K-wires via lateral approach for displaced supracondvlar fractures of the humerus in children. Methods： We prospectively followed 52 children who presented with Gartland type 3 displaced supraeondylar fractures of the humerus and were managed by open reduction and internal fixation with crossed K-wires via lateral approach.There were 37 male and 15 female patients; average age was 7.39 years. The most common mechanism of trauma was fall while playing （n=23）, followed by fall from height （n=20）, road traffic accidents （n-5） and fall from standing height （n=2）. In 2 cases, mode of injury was not available. The mean follow-up was 12 months and patients were assessed according to Flynn＇s criteria. Results： Lateral approach provided an excellent view of the lateral column between two nervous planes and enabled an anatomical reduction in all cases. Immobilizing the elbow at 90 degrees or more of flexion was not needed after cross K-wire fixation. Majority of patients regained full range of motion within 6 weeks of pin removal. Two patients had postoperative ulnar nerve injuries that resolved after pin removal. The common late complication of cubitus varus was not seen in any patient. Delayed presentation to the emergency department, repeated manipulations by bone setters and massage with edible oil were responsible for stiffness in 5 patients. Superficial pin tract infection was noted in 5 patients that resolved with dressings and antibiotics. No deep infection occurred. A detailed clinical examination and radiographic analysis was done at final follow-up. They included measurement of carrying angle and range of movements of both operated and normal sides, and radiographs of both upper limbs for comparison. According to Flynn＇s criteria, 90.4% patients showed satisfactory results. Conclusion： Lateral approach for open reduction and internal fixation of the widely-displaced supracondylar fract     

Ultrasonography for non-displaced and mini-displaced humeral lateral condyle fractures in children

Objective： To evaluate the value of ultrasonography in non-isplaced and mini-displaced humeral lateral condyle fractures in children.
Methods： Nine children aged 2-9 years with non-displaced or mini-displaced humeral lateral condyle fractures were examined by high-resolution ultrasonography. The fracture line through the joint surface was visualized by ultrasonography in 6 case, in which closed reduction and percutaneous pinning was performed on 3 patients and other 3 patients did not receive the treatment because of patients＇ or their parents＇refusal. In the remaining 3 children, ultra- sonography did not reveal the cartilaginous trochle involvement at the joint surface and conservative treatment was adopted.
Results： The average follow-up period was 8 months. The sonographic findings were confirmed by magnetic resonance imaging in one child who received conservative treat-ment and another child who received percutaneous pinning. The elbow function and fracture healing were good in cases received closed reduction and percutaneous pinning. Among the three cases who refused to receive closed reduction and internal fixation, re-displacement occurred in 1 case and delayed union in 1 case. All three cases receiving conservative treatment had good results both in elbow function and fracture healing.
Conclusion： High-resolution ultrasonography enable to reveal non-displaced and mini-displaced humeral lateral condyle fractures as well as to ascertain whether the cartilaginous trochlea humeri was involved. For these cases, arthrography or magnetic resonance imaging is unnecessary.     

平行双接骨板内固定治疗老年肱骨远端粉碎性骨折

Objective To summarize our experience of treating distal humeral fractures of AO/OTA type C with parallel-plate fixation in the aged. Methods From January 2007 to September 2008, we treated 22 cases of type C distal humeral fractures by parallel-plating. They were 6 males and 16 females, with a mean age of 70. 2 (range, 60 to 81 ) years, including 3 open fractures (Gustilo type Ⅰ) and 19 close fractures. According to AO classification, there were 5 cases of type C1, 10 cases of type C2 and 7 cases of type C3. The posterior midline approach was selected. After the articular surface of the distal humerus was exposed through the olecranon osteotomy or the liguliform flap of triceps brachii muscle, parallel-plate fixation was performed to fix fractures internally. All patients began functional exercise of the elbow joint from 3 days after operation. Results All patients were followed up for a mean of 18 (range, 13 to 35) months. All fractures achieved complete union. The mean degrees of the elbow movement were as follows: extension was 16°(range, 0 to 50°), flexion 125° (range, 95° to 140°), supination 65° (range, 40° to 90°) and pronation 67°(range, 40° to 90°). According to Mayo elbow performance score (MEPS), 11 cases were graded as excellent, 8 as good, 2 as fair and one as poor. 86. 4% of the patients had an excellent or good functional result. Two cases reported transient ulnar nerve paralysis, 2 heterotopic ossification, one delayed union and elbow stiffness,3 slight symptoms of traumatic arthritis, and 2 slight malformation of cubitus varus. Conclusions Parallel-plate fixation is a preferred treatment for AO type C distal humeral fractures in the aged because of satisfactory bone healing, early mobilization and recovery of joint function. However, more attention should be paid to the complexity of the fracture which may influence the therapeutic effects of the operation.     

平行双接骨板内固定治疗老年肱骨远端粉碎性骨折

Objective To summarize our experience of treating distal humeral fractures of AO/OTA type C with parallel-plate fixation in the aged. Methods From January 2007 to September 2008, we treated 22 cases of type C distal humeral fractures by parallel-plating. They were 6 males and 16 females, with a mean age of 70. 2 (range, 60 to 81 ) years, including 3 open fractures (Gustilo type Ⅰ) and 19 close fractures. According to AO classification, there were 5 cases of type C1, 10 cases of type C2 and 7 cases of type C3. The posterior midline approach was selected. After the articular surface of the distal humerus was exposed through the olecranon osteotomy or the liguliform flap of triceps brachii muscle, parallel-plate fixation was performed to fix fractures internally. All patients began functional exercise of the elbow joint from 3 days after operation. Results All patients were followed up for a mean of 18 (range, 13 to 35) months. All fractures achieved complete union. The mean degrees of the elbow movement were as follows: extension was 16°(range, 0 to 50°), flexion 125° (range, 95° to 140°), supination 65° (range, 40° to 90°) and pronation 67°(range, 40° to 90°). According to Mayo elbow performance score (MEPS), 11 cases were graded as excellent, 8 as good, 2 as fair and one as poor. 86. 4% of the patients had an excellent or good functional result. Two cases reported transient ulnar nerve paralysis, 2 heterotopic ossification, one delayed union and elbow stiffness,3 slight symptoms of traumatic arthritis, and 2 slight malformation of cubitus varus. Conclusions Parallel-plate fixation is a preferred treatment for AO type C distal humeral fractures in the aged because of satisfactory bone healing, early mobilization and recovery of joint function. However, more attention should be paid to the complexity of the fracture which may influence the therapeutic effects of the operation.     

Ipsilateral simultaneous fracture of the trochlea involving the lateral end clavicle and distal end radius: a rare combination and a unique mechanism of injury

Isolated trochlea fracture in adults is a rare surgical entity as compared to its capitellar counterpart.It has been only mentioned sporadically in the literature as case reports.Fracture of the trochlea is accompanied by other elbow injuries like elbow dislocation,capitellum fracture,ulnar fracture and extraarticular condylar fracture.Here we report a unique case of isolated displaced trochlea fracture associated with fractures of the lateral end clavicle and the distal end radius.We propose a unique mechanism for this rare combination of injuries：typical triad of injury,i.e.fracture of the distal end radius with trochlea and fracture of the lateral end of the clavicle.Nonoperative treatment is recommended for undisplaced humeral trochlea fractures;but for displaced ones,anatomical reduction and internal fixation are essential to maintain the congruous trochleacoronoid articulation and hence to maintain the intrinsic stability of the elbow.     

Selection of approach and fixation in the treatment of type C fracture of distal humerus in adults

Objective：To study the surgical treatment for distal humeral fractures in adults according to the follow-up results.Methods： Twenty-one cases （16 males and 5 females）of distal humeral fracture were included in this study. The average age was 42.5 years （range： 37-52 years）. Fractures were classified according to the AO classification system.Nine cases of C1,8 C2 and 4 C3-type fractures were identified.Open reduction and internal fixation were performed in all cases. A tricep-reflecting approach was adopted, and either the AO orthogonal plating or parallel plating technique was chosen,based on the fracture type. The plaster cast was removed 3 weeks after operation. Rehabilitation was encouraged during this period and afterwards. The average follow-up time was 12.2 months （range： 8-28 months）. The outcome was scored according to Aitken and Rorabeek system.Results：No nerve injury,nonunion or failure of fixation was encountered during the operation and follow-up.However, ossifying myosifis occurred in one case.Conclusions：A triceps-reflecting approach can provide adequate exposure to the joint. The use of AO orthogohal plating or parallel plating techniques based on the type of fractures can provide rigid fixation for the fracture.     

影响AO掌侧锁定加压接骨板治疗桡骨远端骨折疗效因素的随访研究

Objective To analyze the influencing factors for the treatment results of distal radius fracture by AO volar locking compression plate (LCP) fixation. Methods In the peaiod from July 2004 to October 2007,55 cases of distal radius fractures were treated with volar locking compreasion plate in our center.Clinical outcomes were evaluated by active ntnge of motion of the wrist and forearm,grip strength,Gartland/Werley wrist scoring systems and the Disabilities of the Arm,Shoulder, and Hand (DASH) questionnaire. Results There were 55 patients who were followed up for 6 to 44 months, with an average of 17.3 months.All the fractures healed.The Gartland/Werley scores were excellent in 32 cases,good in 10,fair in 12,and poor in 1.,The excellent and good rate was 76.4%.The average DASH score was 9.3±13.8.Patients younger than 55 years had DASH acores of 9.2±15.6 and Gardand/Werley scores of 3.8±5.2.while patients older than 55 years had DASH scores of 9.4±11.2 and Gartlard/Werley scores of 4.8±5.1.The differences between the two age groups were not statistically significant(P＞0.05).Patients with simple distal radius fractures had DASH scores of 4.9±6.4 and Cartland/Werley scores of 2.7±3.8.while those suffered accompanying ulnar side injury or severe soft tissue injuries had DASH scores of 14.1±18.0 and Gartland/Werley scores of 5.9±6.0,the differences being significant(P＜0.05). Conclusion The AO volar locking compression plate fixation provides solid fixation to the fractures.Supplemented with appropriate postopemtive training satisfactory results can be achieyed.Similar functional outcomes were Seen in patients younger or older than 55 years.Patients with ulnar side injury or severe soft tissue injuries appear to have worse results.     

Faculty of Anaesthetists of the Royal College of Surgeons of Ireland

The Faculty of Anaesthetists of the Royal College of Surgeons of England, 35–43 Lincoln's Inn Fields, London WC2A 3PN. Telephone: 01-405 3474.     

深圳市某两所小学流行性腮腺炎突发疫情的流行病学分析

目的：通过对深圳市某两所小学发生的流行性腮腺炎突发疫情的流行病学特点及差异性进行分析,为制定科学、高效的防控策略提供科学依据。方法2013年5～7月深圳市大鹏新区某两所小学爆发流行性腮腺炎,以学校为整体研究对象,分别标记为学校A（24个班,学生1210例）和学校B（27个班,学生1274例）,对比两所小学的疫情流行病学差异性。结果分析发现,学校A流行性腮腺炎发病率为4.30%,发病班级所占比54.17%,均较学校B1.73%和29.63%高,对比差异有统计学意义（P＜0.05）;分析显示学校A学生出现疫病平均年龄为（11.2±1.1）岁,较学校B（9.34±1.0）岁,对比差异明显（P＜0.05）;且两组疫病患儿在接种疫苗率对比上差异无统计学意义（P＞0.05）;但疫情发生时,学校B疫苗紧急接种率明显高于学校A,对比差异有统计学意义（P＜0.05）。结论小学作为流行性腮腺炎爆发的主要场所之一,疫病爆发高峰季节前,针对易感染人群给予相应的疫苗接种等预防控制措施,同时加强流行性腮腺炎的监测,对于降低感染人群数量,减轻、遏制疫情有着积极的意义,值得相关防控部门重视。